4CK7

Pseudo-atomic model of microtubule-bound human kinesin-5 motor domain in presence of adp.alfx (NECK-LINKER IN ITS DISCONNECTED CONFORMATION, based on cryo-electron microscopy experiment

ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3HQD
experimental model	PDB	1JFF

Sample
MICROTUBULE-BOUND HUMAN KINESIN-5 MOTOR DOMAIN

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK I
Cryogen Name	ETHANE
Sample Vitrification Details	LIQUID ETHANE

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	10692
Reported Resolution (Å)	9.2
Resolution Method
Other Details	THE N-TERMINAL SEQUENCE WAS MODELLED USING MODELLER. THE DISCONNECTED CONFORMATION OF THE NECK-LINKER WAS CALCULATED USING A CONJUGATE-GRADIENT ENERGY ...	THE N-TERMINAL SEQUENCE WAS MODELLED USING MODELLER. THE DISCONNECTED CONFORMATION OF THE NECK-LINKER WAS CALCULATED USING A CONJUGATE-GRADIENT ENERGY MINIMIZATION. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2533. (DEPOSITION ID: 12198).
Refinement Type
Symmetry Type	POINT
Point Symmetry	C1

Map-Model Fitting and Refinement
Id	1 (3HQD, 1JFF)
Refinement Space	REAL
Refinement Protocol	FLEXIBLE FIT
Refinement Target	Cross-correlation coefficient
Overall B Value
Fitting Procedure
Details	METHOD--FLEXIBLE REFINEMENT PROTOCOL--X-RAY

Data Acquisition
Detector Type	KODAK SO-163 FILM
Electron Dose (electrons/Å**2)	18

Imaging Experiment	1
Date of Experiment	2011-03-10
Temperature (Kelvin)	90
Microscope Model	FEI TECNAI F20
Minimum Defocus (nm)	700
Maximum Defocus (nm)	2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification	50000
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	200
Imaging Details

EM Software
Task	Software Package	Version
MODEL FITTING	Flex-EM
MODEL FITTING	UCSF Chimera
RECONSTRUCTION	FREALIGN
RECONSTRUCTION	SPIDER

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
	FREALIGN

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.